On the relation between decision rules and perceptual representation in multidimensional perceptual categorization
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چکیده
منابع مشابه
On the relation between decision rules and perceptual representation in multidimensional perceptual categorization.
This article examines the relation between changing categorization decision rules and the nature of the underlying perceptual representation. Observers completed a matching task that required them to adjust the length and orientation of a single line stimulus until they perceived it to "match" a second line stimulus (Alfonso-Reese, 1996, 1997). The same observers then completed four categorizat...
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The authors report 9 new experiments and reanalyze 3 published experiments that investigate factors affecting the time course of perceptual processing and its effects on subsequent decision making. Stimuli in letter-discrimination and brightness-discrimination tasks were degraded with static and dynamic noise. The onset and the time course of decision making were quantified by fitting the data ...
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The optimality of multidimensional perceptual categorization performance with unequal base rates and payoffs was examined. In Experiment 1, observers learned simultaneously the category structures and base rates or payoffs. Observers showed conservative cutoff placement when payoffs were unequal and extreme cutoff placement when base rates were unequal. In Experiment 2, observers were trained o...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 2000
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03212083